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Daily sales records for a computer manufacturing firm show that it will sell 0,1, or 2 mainframe computer systems with probabilities as listed. Find the probability mass function for X, the number of sales in a two-day period, assuming that sales are independent from day to day.
A vertical piston- cylinder assembly contains 0.6 kg of air (K=1.4, R= 287J/Kg.K) initially at 110 KPa and 27 C (state 1). The air is first compressed isentropic ally to a temperature of 117 C ( state 2) which is followed by a constant pressure expan..
consider a gas turbine with turbine staging and reheating. it operates under the following conditions.inlet air at 285
air enters a turbine operating at steady state at 500 kpa 860 k and exits at 100 kpa. a temperature is 460 k. stray
A long aluminium cylinder 50cm in diameter is initially at a uniform temperature of 200°C. It is suddenly subjected to a temperature of 70°C and h = 535W/m2K. How long will it take for the surface temperature to reach 100°C.?
a. determine the density of air at mile high stadium in denver colorado on a warm summer evening when the temperature
Given: In the average American household (2.59 persons per household), each family member takes a 7.5 minute shower every morning. The average flow rate through the shower head is 15L/min. Incoming city water at 15C is heated to 55C by an electric he..
a rocket is launched from the ground in vertical direction. but its engine failed at the moment the rocket has reached
a tank has a stirrer that delivers 200 kj of work on 100 kilograms of water at 45 degrees celcus. assume all of the
Consider a frictionless fluid with a density of 65 lbm/ft3. We describe this fluid as:
a 20-cm-long cylindrical graphite pure carbon rod is inserted into an oxidizing atmosphere at 1145 k and 1.013105 pa
a boiler is fed with a distillate fuel oil of composition c9h16o2n0.03. combustion occurs with 20 excess air. assume
an industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance
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